Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 10, NWS Austin/San Antonio, TX

April 18, 2016Kinney County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Apr 18, 2016, 4:17 AM CDT for Kinney County, Texas. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 18, 2016, 4:17 AM CDT (09:17 UTC)
Expired
Apr 18, 2016, 8:15 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

County Kinney County, TX

The radar

The Laughlin AFB radar (KDFX), 34 km from the middle of the area, began a volume at 09:20 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 18, 6:45 AM CDTFLASH FLOOD10 N Brackettville, TXHIGH WATER OVER THE ROADWAY ON 674 NORTH OF BRACKETTVILLE...TXDOT BEING SENT TO CLOSE ROADWAY. SEVERAL CREEKS AND DRAWS NORTHERN PORTION OF THE COUNTY ARE FULL OF WATER

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Del Rio, TX (KDLF), launched 00:00Z, 9.3 hours before the alert went out and 36 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2016-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1153 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2016-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1153 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1434 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

590 
WGUS54 KEWX 180917
FFWEWX
TXC271-181315-
/O.NEW.KEWX.FF.W.0010.160418T0917Z-160418T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
417 AM CDT MON APR 18 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN KINNEY COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 815 AM CDT
    
* AT 414 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA COVERING THE NORTHERN HALF OF
  KINNEY COUNTY. RAINFALL AMOUNTS OF 2 TO 4 INCHES HAVE FALLEN OVER
  AREAS THAT ARE PRONE TO FLASH FLOODING. LOW WATER CROSSINGS OF
  SECONDARY ROADWAYS WILL LIKELY BECOME FLOODED SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALAMO VILLAGE AND AMANDA. 

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...EAST PINTO
CREEK...DRY SYCAMORE CREEK...PINTO CREEK...LOST CREEK...LAS MORAS
CREEK...NUECES CREEK...GRIFFIN CREEK...SPRING BRANCH...WEST PINTO
CREEK...LINDSEY CREEK...PERDIDO CREEK...EAST FORK SYCAMORE CREEK...
MUD CREEK...SYCAMORE CREEK...ELM CREEK...LITTLE PERDIDO CREEK...FLAT
ROCK CREEK...CAVE CREEK...WEST NUECES RIVER AND ARENOSA CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 2960 10070 2962 10022 2934 10021 2935 10070

$$

MO

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 7:15 PM CDTSpecial Weather StatementEWXBandera30 min
Apr 17, 7:32 PM CDTSevere Thunderstorm WarningEWXBandera, Real27 min
Apr 17, 7:42 PM CDTRiver Flood WarningEWXTravis30 hr
Apr 17, 7:42 PM CDTRiver Flood WarningEWXBastrop46 hr
Apr 17, 7:51 PM CDTFlash Flood WarningEWXBandera3 hr
Apr 17, 8:02 PM CDTSpecial Weather StatementEWXBandera, Kerr43 min
Apr 17, 8:46 PM CDTSpecial Weather StatementEWXBandera44 min
Apr 17, 8:54 PM CDTRiver Flood WarningEWXBandera29 hr
Apr 17, 9:11 PM CDTFlash Flood WarningEWXKendall, Kerr4 hr
Apr 17, 10:11 PM CDTRiver Flood WarningEWXBlanco22 hr
Apr 17, 10:11 PM CDTRiver Flood WarningEWXTravis41 hr
Apr 17, 10:11 PM CDTRiver Flood WarningEWXBastrop, Fayette56 hr
Apr 17, 10:11 PM CDTRiver Flood WarningEWXFayette60 hr
Apr 17, 10:14 PM CDTAreal Flood AdvisoryEWXBastrop, Lee, Travis, Williamson3 hr
Apr 17, 11:10 PM CDTAreal Flood AdvisoryEWXBandera3 hr
Apr 17, 11:38 PM CDTAreal Flood AdvisoryEWXBastrop, Fayette, Lee5 hr
Apr 18, 12:24 AM CDTAreal Flood AdvisoryEWXTravis, Williamson5 hr
Apr 18, 1:07 AM CDTFlash Flood WarningEWXBastrop, Fayette, Lee5 hr
Apr 18, 1:15 AM CDTAreal Flood AdvisoryEWXKendall, Kerr3 hr
Apr 18, 1:40 AM CDTSpecial Weather StatementEWXVal Verde50 min
Apr 18, 2:32 AM CDTSevere Thunderstorm WarningEWXKinney, Val Verde43 min
Apr 18, 2:34 AM CDTFlash Flood WarningEWXVal Verde4 hr
Apr 18, 3:04 AM CDTSpecial Weather StatementEWXVal Verde41 min
Apr 18, 3:43 AM CDTSpecial Weather StatementEWXKinney47 min
Apr 18, 3:54 AM CDTSevere Thunderstorm WarningEWXKinney66 min
Apr 18, 4:11 AM CDTFlash Flood WarningEWXFayette12 hr
Apr 18, 4:31 AM CDTFlash Flood WarningEWXBastrop, Lee, Travis, Williamson7 hr
Apr 18, 5:03 AM CDTAreal Flood AdvisoryEWXBandera, Bexar, Blanco, Caldwell, Comal, Guadalupe and 6 more4 hr
Apr 18, 5:08 AM CDTSpecial Weather StatementEWXKinney52 min
Apr 18, 6:04 AM CDTFlash Flood WarningEWXKinney, Real, Uvalde3 hr
Apr 18, 6:19 AM CDTFlash Flood WarningEWXBexar, Comal, Hays, Kendall3 hr
Apr 18, 6:52 AM CDTFlash Flood WarningEWXBandera, Kerr, Medina, Uvalde3 hr
Apr 18, 7:13 AM CDTAreal Flood AdvisoryEWXGonzales, Guadalupe3 hr
Apr 18, 7:22 AM CDTSpecial Weather StatementEWXMedina38 min
Apr 18, 7:48 AM CDTAreal Flood AdvisoryEWXFayette, Lavaca3 hr
Apr 18, 8:30 AM CDTFlash Flood WarningEWXCaldwell, Gonzales, Lavaca3 hr
Apr 18, 8:52 AM CDTAreal Flood AdvisoryEWXBexar, Comal, Gonzales, Guadalupe, Wilson3 hr
Apr 18, 9:16 AM CDTAreal Flood AdvisoryEWXBexar, Comal, Hays59 min
Apr 18, 9:47 AM CDTSpecial Weather StatementEWXDeWitt43 min
Apr 18, 10:17 AM CDTAreal Flood AdvisoryEWXDeWitt, Karnes3 hr
Apr 18, 11:32 AM CDTAreal Flood AdvisoryEWXCaldwell, Gonzales, Lavaca3 hr
Apr 18, 11:39 AM CDTAreal Flood AdvisoryEWXMaverick2 hr
Apr 18, 11:46 AM CDTSpecial Weather StatementEWXZavala44 min
Apr 18, 12:07 PM CDTSpecial Weather StatementEWXDimmit23 min
Apr 18, 12:44 PM CDTSpecial Weather StatementEWXDimmit46 min
Apr 18, 1:44 PM CDTSpecial Weather StatementEWXKerr46 min
Apr 18, 1:48 PM CDTSpecial Weather StatementEWXDimmit42 min
Apr 18, 2:42 PM CDTRiver Flood WarningEWXDeWitt4 days
Apr 18, 2:44 PM CDTSpecial Weather StatementEWXKendall46 min
Apr 18, 4:00 PM CDTAreal Flood AdvisoryEWXFayette5 hr

Nearby

Flash Flood Warnings in Texas, 2016Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.